Chief Miles O'Brien

Contents (8 sections)

Key facts
Rank and role timeline
Relationships
Most scenes shared with
Lines per season
Appearances
Non-speaking appearances
Heaviest episodes


Transcript label	`O'BRIEN`
Episodes	51 of 176 speaking, plus 1 non-speaking
Dialogue lines	526
Played by	Colm Meaney
Species	Human
Affiliation	Starfleet
Status	Transferred to Deep Space 9

Key facts

Transporter chief; first appears as an unnamed conn officer in the pilot. (S01E01-E02)
Marries botanist Keiko Ishikawa (Data's Day S04E11); daughter is born during Disaster S05E05 and is named Molly in The Game S05E06.
Veteran of the Cardassian border wars, served on the USS Rutledge under Captain Maxwell; haunted by Setlik III (The Wounded S04E12). (S04E12)
Transfers to Deep Space Nine in 2369 as chief of operations (Memory Alpha).

Rank and role timeline

From	Rank / role
Encounter at Farpoint (S01E01-E02)	Conn officer
The Child (S02E01)	Transporter chief

Relationship graph

Relationships recorded in the curated data for this character, as on the Visuals page. Colour is affiliation. Hover a person for detail, click to open their note. Faint curves are ties between the people shown.

StarfleetKlingonRomulanCivilian / FederationOther

Height

Relationships

Keiko O'Brien: wife (Memory Alpha: Keiko O'Brien)
Captain Benjamin Maxwell: former captain (Memory Alpha: Benjamin Maxwell · S04E12)
Lieutenant Reginald Barclay: colleague he helped through transporter phobia (S06E02)

Most scenes shared with

Character	Scenes
Captain Jean-Luc Picard	87
Commander William T. Riker	73
Lieutenant Commander Data	60
Lieutenant Worf	43
Lieutenant Commander Geordi La Forge	41
Counselor Deanna Troi	33
Dr Beverly Crusher	19
Wesley Crusher	12

Lines per season

S1	S2	S3	S4	S5	S6	S7
6	107	62	152	102	72	25

Appearances at a glance

One cell per episode in broadcast order; darker means more lines, an outlined cell is an appearance without dialogue. Hover for the episode, click to open it.

Appearances

Code	Episode	Lines
S01E01-E02	Encounter at Farpoint	4
S01E07	Lonely Among Us	2
S02E01	The Child	2
S02E02	Where Silence Has Lease	10
S02E05	Loud as a Whisper	1
S02E07	Unnatural Selection	25
S02E08	A Matter of Honour	10
S02E09	The Measure of a Man	6
S02E10	The Dauphin	2
S02E11	Contagion	8
S02E12	The Royale	2
S02E13	Time Squared	3
S02E14	The Icarus Factor	11
S02E15	Pen Pals	6
S02E16	Q Who?	3
S02E18	Up The Long Ladder	4
S02E19	Manhunt	1
S02E20	The Emissary	4
S02E22	Shades Of Gray	9
S03E05	The Bonding	2
S03E06	Booby Trap	4
S03E07	The Enemy	4
S03E08	The Price	1
S03E11	The Hunted	9
S03E14	A Matter Of Perspective	14
S03E20	Tin Man	3
S03E21	Hollow Pursuits	6
S03E22	The Most Toys	2
S03E23	Sarek	6
S03E25	Transfigurations	4
S03E26	Best Of Both Worlds, part 1	7
S04E01	Best of Both Worlds, part 2	7
S04E02	Family	7
S04E03	Brothers	9
S04E05	Remember Me	8
S04E06	Legacy	7
S04E11	Data's Day	16
S04E12	The Wounded	58
S04E14	Clues	4
S04E17	Night Terrors	13
S04E22	Half a Life	2
S04E24	The Mind's Eye	15
S04E25	In Theory	6
S05E01	Redemption part 2	13
S05E02	Darmok	8
S05E05	Disaster	37
S05E06	The Game	6
S05E15	Power Play	38
S06E02	Realm of Fear	48
S06E07	Rascals	24
S07E25-E26	All Good Things...	25

Non-speaking appearances

Episodes where the character appears without dialogue, and how we know.

Code	Episode	Source
S03E02	The Ensigns of Command	cast list, stage directions

Heaviest episodes

The Wounded (S04E12): 58 lines
Realm of Fear (S06E02): 48 lines
Power Play (S05E15): 38 lines
Disaster (S05E05): 37 lines
Unnatural Selection (S02E07): 25 lines